insufficient load
excessively high oil viscosity
relief-valve pressure setting too high
reservoir level being maintained two inches above normal
第1题:
If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will .
A.have a larger than normal dead band
B.produce excessive speed response to a load change
C.respond slowly to any change in engine load
D.stabilize engine speed at the new governor setting
第2题:
One cylinder of a diesel engine is persistently knocking and does not cease(停止) when the fuel supply to that cylinder is secured.Which of the following problems may be the cause?
A.Low loading of the cylinder
B.Excessive cooling of that piston
C.Sluggish ring action on the piston
D.A mechanical defect in a working part
第3题:
(c) You have been making preliminary inquiries regarding matters arising from the previous year’s audit of Di Rollo.
It has been revealed that no action has been taken in response to the management letter prepared by the previous
auditors. Di Rollo’s management has explained that this was because it was ‘poorly prepared’ and ‘unhelpful’.
Required:
Briefly describe various criteria against which the effectiveness of a management letter may be assessed.
(7 marks)
第4题:
对一项在发生之前未界定的风险事件作出响应称作:()
第5题:
Which of the following problems may be encountered by using an oil having a viscosity higher than that specified for an operating hydraulic system?
A.External seal leakage
B.Hunting due to fast response
C.Hydraulic oil film breakdown
D.Increased power consumption
第6题:
Air trapped in the hydraulic fluid of a steering system may be indicated by
A.the steering pumps overspeeding
B.a jammed open relief valve
C.a constantly occurring improper rudder response
D.excessive ram pressure
第7题:
Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by ______.
A.permanent loss of pump suction
B.worn shaft seals
C.high level in the oil sump
D.low motor RPM
第8题:
In a civil case, one party may file an action; the other party may or may not()the claim.
A.admit
B.confess
C.agree
答案:B
解析:admit the claim 意为“承认索赔”,符合题意; confess the claim用在刑事案件里,意为“承认索赔”;agree the claim意为“同意这一说法”。本句译文为,在民事案件里,一方提出诉讼,另一方可能接受或者是拒绝索赔。
第9题:
A hydraulic motor may be driven by______.
A.an electric motor
B.a diesel engine
C.a compressor
D.oil
第10题:
excessive drive motor speed
excessive pump discharge pressure
too low of a tilting box angle
insufficient drive motor speed